Capt'nChaos

Looks like some great suggestions...

I'd offer the following:

500cc bottle of Saline (irrigate eyes and other body parts)
"Sam Splint" or equivalent (to splint sprained or broken body parts)
"Water Gel" (soothes burned body parts)
Ibuprofen (helps with swollen body parts)
1-2 rolls medical tape (holds bandages in place)
tube of glucose (for low blood sugar)
Waterless hand cleaner/sanitizer (cleans dirty body parts)

Take a first aid class

The red cross list is good..increase the amounts if you have space. I'm a big fan of storing the supplies in zip-loc bags to protect them from moisture.